Harmony refers to the "vertical" Seems of pitches in music, which implies pitches which have been performed or sung jointly simultaneously to make a chord. Commonly, This implies the notes are played at the same time, Whilst harmony may also be implied by a melody that outlines a harmonic construction https://zpfeni.gov.bd/public/files/assets/ckeditor/kcfinder/upload/files/tips-to-improve-the-sound-quality-of-android-phones.shtml